Friends,
I've been in touch with Gianfranco at MADS and Andy at Custom-Diesel, maker of the EGR delete. I'm focusing more effort w/ MADS as their Smarty6. 7ME software is supposed to make EGR/DPF removal code-free. As you know, the truck is throwing a code 0401 EGR Performance after driving a few miles. I have followed instructions from MADS website that include keeping the EGR Valve motor plugged in to prevent codes. There are only three connectors on my EGR: one into the cross-over pipe (heat sensor?), one in the EGR Valve Motor and one in the Throttle Valve in the intake horn. So, you can see there is really not too much to performing this project. My truck only set one code when a couple of months old.
Now, where I am with MADS: Gianfranco informed me I may need to shim my fuel pressure relief valve to prevent setting codes. I don't understand the relationship of the rail fuel pressure and EGR preformance. I'm hoping he can explain further than there is a problem with the Dodge stock ECM software. Since I've been running MADS Smarty6. 7 on my truck for over two years on SW#3 and SW#5 without throwing any codes, I'm reluctant to shim the fuel pressure relief valve, effectively increasing max fuel line pressure. I'm waiting to see what they say next. Bottom line: I've properly completed hardware mods, so it's all about software (to me).
Please share with folks who may have done this on their HD P/Us for their thoughts/experiences.
I'll keep you informed as new info is avail.
Ron